KX Community

planefan

Hey All, How do you use KDB sin/cos/tan to solve for the angles of a triangle? Im not asking about SOHCAHTOA -- when I use the sin/cos/tan functions in KDB/q I get different results c...

igor

Hi all, Anyone know if there's any way to control which directory is used during system commands? We have run into issues where /tmp is full and would like to use a different directory t...

Xiaocheng

Suppose we have table tblAAPL, tblIBM already, can I insert data into each table by using peach to accelerate the process? If tables do not affect each other. for example: insert[; data] peach `t...

LearnerKDB

fileName:hsym `$"C:/users/data.csv" show t:("SSDD";enlist",") 0: fileName After running these two lines iam getting below error: OS reports no such file or directory. But data.csv is there in t...

Denakaran

Hi guys, When i'm doing `$("1";"0") it is automatically showing as "10". Is there any way i can make it as `1`0

racuna00 · ‎2021.09.23

Hi Community, I have a dictionary of tables, so I want to convert them into functional queries but when I try to build it, it retrieves a type issue, Do you know if it is possible? Attached pic! ...

LearnerKDB · ‎2021.09.22

I want to add a column to an existing table based on nested conditions T:([]a:`F`R;b:10 20;c:9 21;d:10 22) Func:{[tab] If a=`F If b<c ...

racuna00 · ‎2021.08.31

Hi Community, I am trying to create a REST API that would have 2 method(get and post), and It would be initially an empty table tab : ([] a : `$(); ...

ekallivrousis · ‎2021.09.02

I have a function which takes 2 arguments. Ill write some pseudo code for an idea f:{[x;y] $[x~`1;y;`0]} Then i have a table: t:([]a:`1`2`3;b:`4`5`6) Now i want to call that function and pass...

ekallivrousis · ‎2021.08.25

Can you please help me understand the below and why that number is converting to 99999 at end q)\P 0 q)79347181.71 79347181.709999993 q)\P 16 q)79347181.71 79347181.70999999 q)...

KX Community

KDB Geom/Trig

Control system command directory used (instead of ...

insert into global table in peach

Importing data from csv file

Concatenation issue for atomic values

SQL query to Functional query[Parse Tree]

Applying nested conditions in q

Building REST API KDB - Issues setting up SSL-TLS

SQL call function with 2 args

Help Understanding Precision